Combined type-writing and computing machine.



Patented May14, 1918.

2 SHEETS-SHEET I.

Il I

W. WRIGHT.

COMBINED TYPE WRITING AND COMPUTING MACHINE. APPLICATION FILED 1,114.20` 19x2. RENEwED 00126. |911.

Q4] INVENTOR:

BY W

ATTORN Y RENEWED OCT. 26, 1917.

2 SHEETS-SHEET 2.

IN V E N T 0 R W Patentd May 14, 1918.

| NSSES NITED sTArEs PATENT ernten' WALTER wIiIGHT, orvNEw YORK, N. Y., AssIGNOn fro" CiiNnnr'wvoon CoMPufrING MACHINE COMPANY, or NEW YORK, N. Y., A CORPORATION or NEWYORK.

COMBINED TYPE-WRITING AND COMPUTING MCINE.

s'pecmeatimi gf Letters Patent.

ratted May 14, 1ste.

Appiieaaen mea Jauary 2o, 1912, serial No. 672,350. Renewed october 26, 191'7'. serialv No. 198,637.

To all whom t may concern:

Be it known that I, IVALTER VVRICHT, a citizen of the United States, residing in New York city, in the county of New Iork and State of New York, have invented certain new and useful Improvements in Combined Type-VVriting and Computing Machines, of which the following is a specification.

This invention relates to a semi-automatic selective control for computing heads useful in connection with machines such as the Underwood-Tight combined typewriting and computing machine, and is an improvement on an application No. 543,603, filed jointly by Gustave O. Degener and myself, February 12, 1910,and my application No. 671,741, filed January 17, 1912.

An object of this invention is to enable the rapid rselection in a new and improved manner of any one of a plurality of combinations of states of which a plurality of computing heads are capable, by the simple manual adjustment of a single member.

In theA embodiment used to illustrate the invention, a plurality ot' computing heads each have the driven elelnent thereof governed in the rotation and direction .of rotation so as to govern the activity and character of activity of the computing heads by a controlling mechanism individual to each head. The' controlling mechanisms are in turn concomitantly manipulated by a gove-rning mechanism which has Shifters, one of which is individual to each controlling mechanism and capable of adjusting the same to any one of three positions corresponding to the three states of the accordant computing heads.

The shifter-s have a fixed relation to each other and are each in the form of a cylindrical cam having cam grooves with three distinct positioning points of different. elevation corresponding to adding, subtracting or neutral positions of the controlling mechanisms. These three kinds` of positioning points `are repeated on eachshifter the number of tines required in different apposite.permutations on the several Shifters, to give the desired number of combinations of states ot' the computing heads. In the case of two computing heads, the distinct positioning points corresponding to adding and subtracting are repeated on each cam a number ot timesI equal to the number of computing heads plus one. The positionlmg pomt correspondln to neutral is repeated on each cam a num er of timesequal to the number of computing heads. For example, in this case Where two-computing heads are shown, the positioning points corresponding to adding and subtracting are repeated three times on each cam, and the posltioning point corresponding to neutral is repeated twice on each cam. This gives all possible combinations of states of the computing heads in the same and different orders, with the, exception of the silencing of all of the computing heads, or in this example, of the double neutral, whichcan be obtained by cutting ott the motor or by disconnecting the computing mechanism from the numeral keys of the typewriting mechamsm.

The governing mechanism, of which the cams connected to move in unison form a part, is actuated from a controller which can occupy any one of a plurality of positions corresponding to the several combinations 'of states of the computing heads and is moved from one position to another by a single stroke. The controller has means for locking it in its several positions of adjustment, and also has means for indicating what combinations ot' states leach position corresponds to. The governing mechanism including the cams and controller acts as a permutation device to determine the different states of the computing heads.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a side view in elevation partly 1n section.

Fig. 2 is a fragmentary front view in elevation.

Fig. 3 is a diagrammatic skeleton view, showing the connection of one of the nu meral keys to the valuating mechanism for determining the extent of rotation of the master wheels.

Fig. 4 is a verticalsection through one of the computing heads. Fig. 5 is a development of the two cam Shifters, showing the relative arrangement of the positioning points for obtaining the several states of adding, subtracting and neutral of the computing heads.

Fig. 6 is a fragmentary horizontal section, showing a detail of the gearing ,for the tens carrying mechanism.

Referring more'particularly to the separate parts of this invention as embodied 1n the form shown in the drawings, 1 indicates letter keys and 2 numeral keys which are secured to levers 3, so as to becapable of rocking, when depressed, bell cranks 4, to swing type bars 5 against the front side of a platen 6 mounted on a carriage 7, which in turn travels on one or more guldes 8.

The carriage 7 may be fed step by step in the usual manner at the actuation of each of the keys, under the control of an escapement mechanism indicated in general at 9, which 'may be of the usual Underwood type. The movement of the traveling elements of the computing heads, of which two are shownat 10 and 11, maybe controlled froln the carriage in a manner described in my application No. 574,813, filed August 1,1910.

The traveling elements of the computing heads 10and 11, in this instance, are shown to be master wheels, one of which is disclosed at 12 in Fig. 4, and the means for traversing the same may be brieiiy described as including a rack bar 13 carried by the carriage 7 and movable therewith, which supports, at adjustable intervals, tappets or stops 14. The tappets 14, of which there may be one or more, engage at intervals With a spring-pressed latch 15 on one end of a lever 16, which is pivotally mounted intermediate its ends, as at 17. The opposite end of the lever 16 is bifurcated to form two forks 18, one of which ext-ends to the master wheel of the computing head 10, and the other of which is connected to the mas- .ter wheel of the computing head 11.

Inasmuchas the computing heads are the same, only one will be described. The master wheel 12 is mounted on a master wheel shaft 19, so as to rotate therewith and yet be capable of sliding longitudinally thereof, so as to bring the teeth thereon successively into engagement with internal gears 20 formed by inwardly projecting teeth on a series of computing wheels 21 which are arranged coaxlally on the shaft 19. These computing wheels 21 are also provided with external teeth forming external gears 22, which mesh with corresponding gears 23 carrying numeral bearing dials or wheels 24 which are adapted to exhibit the numbers thereon, as they are turned up, through an aperture 25-in the computing he'ad casing 26. Each of the master wheel shafts 19 is provided at its`ou-ier extremity with a bevel gear from whence it receives its motion. These bevel gears are shown in Figs. 1 and 2. and are. indicated by the numerals 27 and 28. The bevel gears 27 and 28 receive their motion in turn from either one of a pair of bevel gears loosely mounted on a shaft 29, and adapted to bel connected thereto by clutches 30 and 31 splined on the shaft 29 and mounted between the members of loosely mounted pairs of gears so as to be capable of clutching either one in each pair to the shaft 29. The paired gears are indicated by the numbers 32, 33, 34 and 35.

In order that each of the computing wheels 21 will carry a complete rotation of a wheel of lower denomination to a partial rotation of a wheel of higher denomination,

there is provided a tens carrying mechanism, indicated in general by the numeral 36, which is more fully described in said application No. 543,603. It is suilicient to say of the character of the tens carrying mechanism that it depends for its action on the rotation and direction of rotation of a rubber roller 37. This rubber roller 37, in the case of each computing head, is driven from a shaft 38 by means of a train of gearing` indicated in general by the numeral 39.

The shafts 38, in the case 0f the computl ing heads 10 and 11, are provided respectively with bevel gears 4() and 4l arranged to be driven in either direction by pairs of bevel gears` loosely mounted on a shaft 42. These pairs of bevel gears are indicated by the numerals 43, 44, and 46, and are adapted to be connected in driving relation with the shaft 42 by means of clutches 47 and 48 splined .on the shaft 42, so as to be shiftable from a position in engagement with either one of the members of the pairs of gears to engagement with the other.

The clutches 30, 31 and 47 and 48 are likewisecshiftable to an intermediate posi tion corresponding to the interruption of the drive from the shafts 29 and 42 to the computing heads. The shaft 29 -receives its drive from a shaft 49 by means of meshing bevel gears 50 and 51. The shaft 42 receives its drive from a shaft 52 through the intermediary of a shaft 53, which is connected to the shaft 42 at one end by means of bevel gears 54 and 55, and is connected to the shaft 52 at the other end by means of bevel gears 56 and 57. The shafts 49 and 52 receive their drive more or less directly from a ,motor 58 which is connected to the shaft 52 through the intermediary of a slip clutch (not shown) and inter-meshing bevel gears 59 and 60. The shafts 49 and 52, however, are not permitted to rotate until one of the numeral keys has ybeen struck, and then only an amount corresponding to the particular numeral key actuated. This arrangement is attained by providing the shafts 49 and 52 with bevel gears 61 and 62 meshing with a common bevel gear 63, which is connected by means of gears (i4 and 65 to a shaft 66 on which a valuating or master wheel 67 is also secured.

lvers, tege The rglutinfg wheel 67 is normally pre- Vented freni rotating by one of a series of pins 68 thereon enggin'g an escpeinent wheel 69, :which tiiin is prevented from rotationby an escapeinent wheel' 70,'se`cu'red to :i common shfift 71, and engaging lone 'of a pir of locking. dogs 72 on a rock shaft 73. The rocking shiift 73is-'oscillated aiv the depression of each of thenurne'rl keyS from l to 97 inens of collr 74 which swings alevel'l 75, thereby in turn pulling on a lever 7 6 on the rock shaft throiifgh jghe. in'terniediniy of a link 77. AThe collar 74 in tiirn iS rcipr'cv'td at yezicli sti-oke 'of e nhinleil key', .s yvill b' sen i'feiec' t' Figr, by'eah fof the keys y2, pulling diiin on 1ink78=,.s 's torlck bell 'cr'gi'nk A795l nd thus thr'f'gl the itrrijediry or link 80, swing 'one of@ sisbi levers' Si info' enggenieni "wii'tnihe oll 7 4-ivllerbys'id fcnr `will be pre'sgedrrwrmy ig frstii ten'sifn of Spring 8 2 'etrns' it when 'tl'ifef'efs'su tl keyis i"einoved;

The piiiij's'e 'of shifting the cliitchey 30 andai `and 47 `mid 48 is to chang the fst-ate of the cornp'uting he'adsby controlling the rotation of the ic'tiibl elements thereof and thei dieeizi'on 'of rot'ziii'ofri.' In rilei i' Shift thes'e 'clutches t obtin the desired states nndwhich the 'computing heads are fo ich l. ny p'rtieillsii iiient', there are oy'id'ed composite levers siend, one for ea'h bof the computing needs, These composite ie- The Supplementary ieyr 88 his a limited movement reltive'to the inin level-T; which rn'ayube taken upvby :i $p`rng9`0; The ,m'ain and suppiemeniry levers; in, the cage ofeh crnbosite lever, r piovi'cled -respc fcltiyfe ly with pins r91 and 92 which engage 'grooves in the insister Wheel cinteh 'sind ten ci'ryng durch, tht they 'yvill be shifted corriesp'ndingly in accordant directions to obtain corresponding rotations of the master wheel and v'tene carrying mechanism of each corn- 'pinning head'. The main levers 86 projectie the front of the machine 'wlie're' they :ire provided with finger pieces 93, whereby they may be manually adJusted.

In order to obtain :i concomitant c hinge in s'tnte of nllof the computing heads; the 'composite levers 84 and 85 are pim'ik'leil vwith pine 911 und 95, lwhereby 'they nmy bi. adjusted to any one of `their three 'positions corresponding to adding substr-acting und neutral 'of their accordant 'cinnpnting heads by n ieains of Shifters 96 and 9T individual llieife'fo, Iwhich form u purtof a governing in'echaiiiinl.,` The Shifters 913,:in'd 97 zii-'e shoiin Ain the forin of zyliiiil'riczil cnnisfe- "(:ij'e'dM'to n C''Iiiinign Sliaf't 98, fso :is ,ifo 'rotaie in inniso'n; To rotate theehft 98, il is` pro- \"(le"d Viviih @bevel ygfzir 9 9 ni'elsl'iilig "with a :i Sevior plate lofhnbiitr- :nf-'c 'of i1' igimf tions referring io ihe lower (kniini'tiiig liezid ai'nklitli iniii" nic Pfiiin'g to flie 'lilip'er coinli'itinghezifd. v

It-.iivll be Seen i'fei'ring1-to 5, iijliicli ,slio \\"5 a development of thernin 96 iinkl 97, than* 4:ill possible (Kombinations f stairs iiglyb'e bniin'ed with, 'rhj xzpiion k'ofwtlfle' iloilll'e niiitriil,n'liilrinziy be 0btiiined 4by (f'iitting ont "che,inolor.` 5S, oi' dist connecting lli'e linksy 78 from the nnin'e'rnl kyS In Itli'c iioSition in which the. conf 't` ller isehfn'vir in Fig. 2, theJ lever 103 to SS, which indicaltes thait bo'th `the eoinini'tiiig li'eaiils l() and 11 'will be, sul)- t'ai'ftiiigV 'llliiit iS, the 4p'os'iiii'oning' lpoints :iS shown .it iihqi'- nii extreme right orleft of Fig. 5, lWill b'e in erggenient fWith `the pins y911 and 95. This corresponds to thi` Shifting ihk'l `viiiposite lerer'fsL 84 und 85 io' their np'p'e'i'in'osit` i)(siti'o'ii (Considering the` finger piece 93). These postio'nsioxrespond to the "snbtla'cting s'tzite of both computing heads.

Erich of the czuns huye two other distinct positioning vpoints coi'epnding respectively to iiddi'n" n d neut-ia.l states of the computing hea 's`. It will .be seen by still referring to Fig. 5 that the adding and subtracting positioning points' are repeated three :times or a number of times equal to the-numberoil computing heads plus l, and'that the positioning point' corresponding to neutral is repeated in each cam twice or a number of times corresponding to the number of computing heads. This enables the attainment of every possible combination of states of the computing heads, with the exception of the silencing of all the computing heads or the double neutral, by the simple n'ianipulation of the controller lever 103.

In the operation of the device, the controllery 103 may be shifted as often as desired to obtain different states of lthe computing heads. It may even be shifted at each new column of writing on the work sheet on the platen.- If we assume that in the first column on the work sheet on the platen it is desired to add in all the computing heads, the controller can be shifted so that its lever will be opposite to the second set of indicating letters in the scale, AA. l/Vhen this occurs, the segment gear 102 will rotate the gear 101 so 'as to rotate theshaft 98 through the intermediate gearing, whereby the positioning points, indicated at 110 and 111 in the development of the cams `in Fig. 5, will come into engagement with the pins 94 and 95 of the controlling mechzfnism, whereby the clutches will be shifted to cause a rotation of the. actuable elements of the computing heads in a direction corresponding to adding in both computing heads.

If, in the next column or any subsequent column, it is desired to change the character of action of either or both of the computing heads, the controller can bev swung to the particular combination of actions which is desired. If, for example, it is desired to have the lower computing head adding and the upper computing head remain. silent or inactive, the controller lever will be swung down to the. third set of indicating characters AN, when the positioning points, indicated at 112 and 113 in Fig. 5, will come into engagement with the pins 94, and thus adjust the controlling mechanism so that .both the clutches ,30 and 47 will be out of coperation with both members of each pair of gears on theshafts .29 and`42, and also whereby the clutches 31 and 48 will be in their accordant positions corresponding to he ladding action of the lower computing ica( It will thus be seen that thefcharacterof action of earhsfand all of the computing heads can be controlled from a single point" bythe simple manipulation of a lever which'V moves in a single plane so as to obtain any combination 'of states of all'the computingv ineens@ heads as may be desired, and that the change from one combination of states to another may be made as often as desired.

Variations may be resorted to within the scope of the invention, and portions of the im rovements may be used without others.

aving thus described my invention, I claim:

1. The combination with a plurality of computing heads, of individual controlling mechanism for governing the-state of each computing head, governing mechanism for adjusting all of said controlling mechanisms, a bevel gear connected to said 0overning mechanism, -a bevel gear mesliing with said first mentioned bevel gear, a gear for driving said second-mentioned bevel gear, and a lever having a gear connected thereto and meshing with said last-inentioned gear for actuating said governing mechanism.

2. In a combined typewriting and computing machine, the combination with a traveling carriage to determine different computing zones or columns and a plurality 'of computing heads, each capable of existing'in addition, subtraction or in neutral state, of a permutation device to control the states of said computing heads, said permutation device having a state controller, one for each computing head, said controllers bearingformations such that said controllers may act jointly to determine any state of activity of any head in combination with any of said states of any other head.

p 3. In a computing machine, the combination with a plurality of computing heads, each capable of existing in addition, subtraction or a neutral state, of a permutation device to control the states of said computing heads, said vpermutation device having a state ycontroller for each computing head, and said permutation device including a part shiftable `by a single stroke from one position to any other, to determine any state of activity of any head in combination with any of said states of any other head.

4. In a computing machine, the combination with computing mechanism including a plurality of computing heads adapted to exist'in different states as to addition, subtraction or remaining neutral, of a. member movabler to different positions by a single stroke and determining by its position any state of activity of any head in combination with any of said states of any other head.

5. The combination with a plurality of 'computing heads having certain actuable parts, of means for driving said parts, gearing between said driving means and said parts, means for controlling the rotation and direction'of rotation of said parts by said gearing, and a single lever movable solely in one plane for actuating said controlling means to selectively determine any combination of states which said computing heads shall act under at any particular moment.

V6. In a combined typenf'riting and computing machine, the combination with a traveling carriage to determine different computing zones or columns and a plurality of computing heads, each capable of exisiting in addition, subtraction or a neutral state, of state controlling mechanism individual to each head, cams, each of said cams having positioning ypoints corresponding with adding, subtracting and neutral states of said computing. heads, the positioning points corresponding to each state being repeated on each cam the same number of times, whereby said cams may by a movement from one position to another selectively determine any state ofl activity of any head in combination with any of said states of any other head in any-computing zone as determined by said carriage.

7. In a combined typewriting and co'mputing machine, the combination with a traveling carriage to determine different computing zones or columns and a plurality of computing heads, each capable of existing in addition, subtraction or a neutral state, of state controlling mechanism individual to each head, cams having positioning oints, the positioning points on one cam eing different in order of arrangement to the positioning points on the other cam, said positioning points on the two cams bearing such relation to each other that said ycams may act jointly to determine any state of activity of any head in combination with any of said states of any other computing head in any computing zone as determined by said carriage.

8. In a combined typewriting and computing machine, the combination with a traveling carriage to determine different computing zones or columns and a plurality of computing heads, each capable of existing in addition, subtraction or a neutral state, of state controlling 1nechanism-indi'- vidual to each head, cams, each of said cams having three positioning points corresponding with adding subtracting and neutral states of the computing heads, the positioning points of-'the same kind on each of said cams being in register with each other' and also in register With every other kind, whereby said cams may act jointly to determine different combinations of state of said computing heads in any computing zone as determined by said carriage.

9. The combination with a plurality ofcomputing heads, of controlling mechanism for governing the state of each of said computing heads, a cam for each of said controlling mechanisms, each of said cams having three distinct positioning points corresponding to the adjustment of said conltrolling mechanisms accordant with adding, subtracting and neutral states of the connected computing heads, the positioningpoints corresponding to each state being repeated on each cam the same number of times, a shaft connecting said cams to move in unison, and a single controller for rotating said shaft in either direction, and determining by its position the different combinations of states accordant with said positioning points.

10. In a computing machine, the combination with computing mechanism including a plurality of computing heads adapted to exist in different states as to addition, subtraction or remain-ing neutral', of a plurality of members, one member foreach computing head, each of said members havingpositioningpoints in number and arrangement such that said members may act jointly to determine any state of activity ofl any head in combination with any of said states of any other head and a. member movable from one position to a plurality of other positions to determine said combinations of states.

11. The combination with a plurality ofcomputing heads, of a typewriter carriage traveling to determine different computing zones or columns, and controlling mechanism independent of the travel of said carriage for selectively obtaining any combinations of states of said computing heads, said controlling mechanism including a member occupying various positions and movable by a single stroke` from one position to any other and determining by its positions the states of said computing heads in any computing zone as determined by said carriage.

12.` The combination with a typewriting mechanism including a traveling carriage, of computing mechanism 'including a plurality of computing heads, and controlling mechanism for selectively obtaining any combinations of states of saidv computing heads for any position of said carriage, said controlling mechanism including a controlling lever movable in a single plane from one position to any other and determining. by its positions the various combinations of states of said computing heads in any computing zone as determined by said carriage.

1-3. In a computing machine, the combination with computing;,mechanismA including'` a plurality of computing heads ladapted to exist in different states, of a permutation device to control the states of-said computing heads including a plurality of circularv cam tracks one for each computing head,

'said cam tracks having formations arran d ling by their positions different combinations of states of said computing heads.

14. The combination with a pluralit of computing heads, of a shifter for eac of said computing heads, operable to determine the states ci. said computing heads, a shaft common to all of said Shifters arranged to operatey said Shifters in unison, and a controller lever connected yto rotate said shaft and said Shifters, said controller lever movin" solel vin a plane parallel to the axis of said sha `15.1The` combination with a plurality of *computing heads, of a plurality of Shifters,

one yfor each of said heads connected to Y controly the states of said heads, a shaft common to all of said Shifters and extending vertically alongside of said computing heads, and a controller lever connected to rotate said shaft so as vto operate said shifters in unison, said controller lever moving solely in a single vertical lane.

16. In a computing mac `ne, the combination with computing mechanism including a plurality of computing heads adapted to exist in different states, of a plurality of cam members one member for each computing head, and a lever movable in a single plane to cause joint action of said members and thereby determine any state of activity of any head in combination with any state of any other head.

17. The combination with a plurality of computing units vfor computing in a given cycle of computing zones, of a joint control common to all of said computing units and manipulable from a single oint, said joint control having provision or determining any state of activity of any head in combination with any state of any other head Which combinations may be obtained by a single stroke of said joint control from one posltion to any other, said jointcontrol being effective at 'any point in the cycle of computing zones.

WALTER WRIGHT.

Witnesses z i B. GOLDBERG, C. RIPLEY.

Copies this patent may be obtained ter ave cents each2 by addressing the fcommissioner of Patents, Washington, D. C. 

